Photo Index - National Sewing Machine Company - Vindex Division - Hand Crank Grinder

Machinery Photo Index

Manufactured/Badged by:
National Sewing Machine Company - Vindex Division
Belvidere, IL

Machine Specifications
Machine Class:	Metal Working Machinery
Machine Type:	Grinder, Bench
Machine Size:	4"x¾" (estimate)
Submitted By:	Brian Kachadurian

Machine Specifications
Description/Model:	Hand Crank Grinder
Date of Manufacturer:	1930s-1950s
Serial Number:	none
Last Updated	6/30/2020 6:15:06 AM

Comments:

>>MACHINE<<
Vindex hand crank grinder from National Sewing Machine's home shop machinery line.
Simple single speed gear reduction drive, with plain bearings and a 5/16" reverse thread arbor.
The body is cast iron and the tool rest is stamped steel.
Small oil holes are located at the arbor and crank shafts.
The grinding wheel is 5" x 1", with a fairly soft bond (I suspect this wheel is not original because the nut doesn't completely thread onto the arbor and the tool rest doesn't clear in the lower position).
I believe the original wheel size is 4" x ¾".
The arbor flanges are small flat washers (not sure if they are original).

>>HISTORY<<
January 2005:
I purchased this grinder at the Royal Oak Michigan ReTool. No further info is known.
Lubricated with SAE30 in the two oiling holes.

June 2020:
Changed the ¼"-20 tool rest round head machine screw to a carriage bolt and added a washer on the nut side.
The tool rest is now easier to adjust and lock the setting with a box wrench.

Photo 1:

Comments: Tool rest view
Source: iPhone 4S in existing light

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Photo 2:

Comments: Tag decal
Source: iPhone 4S in existing light

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Photo 3:

Comments: Right side
Source: iPhone 4S in existing light

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Photo 4:

Comments: Wheel & tool rest
Source: iPhone 4S in existing light

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Photo 5:

Comments: Back side and crank
Source: iPhone 4S in existing light

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